baber/WOPTO huggingface dataset:
Patent CA-2021914-A1 (CA)
Title: Floor covering, in particular for the tread surface of cattle stalls
Inventor: HEINRICH MICHEL
IPC: A01K1/015
Filed: 1990-07-25
Abstract: ABSTRACT A floor covering panel adapted to be securable in interlocked relation with adjacent ones of a plurality of other such panels, in supported relation on a framework for securing the interlocked panels in spaced apart relation from an underlaying floor. Each panel defines at least a part of a discrete floor portion bounded on the panel by raised ribs and having a tread surface which extends outwardly and downwardly away from those bounding ribs to form a generally central depression in the discrete floor portion. Each such portion has an at least one drainage slot extending across a substantial proportion of the discrete floor portion.
Patent CA-2023074-A1 (CA)
Title: Process for the hydrogenation of halogen-substituted compounds
Inventor: KLOCKNER HANS-JURGEN
IPC: C01B33/107
Filed: 1990-08-10
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention relates to a process for the hydrogenation of halogen-substituted compounds of elements of the 2nd to the 4th period of the groups III to V of the period, i.e. table with the exception of gallium, aluminum, carbon and nitrogen.  This process is characterized in that a) finely divided aluminium is added to a salt melt consisting of 50 to 67 mole % of AlCl3(anhydrous) and 50 to 33 mole % of sodium chloride, b) hydrogen is passed into the suspension, that is stirred or dispersed by some other means, in order to hydrogenate the finely divided aluminum, c) the mixture thus formed is subsequently reacted with the halogen-substituted compound and d) the hydrogenated compound is isolated.
Patent CA-2023486-A1 (CA)
Title: Liquid triglyceride oil
Inventor: LAKATOS LESLIE K
IPC: C11C3/12
Filed: 1990-08-17
Abstract: ABSTRACT      Liquid  vegetable  oils  having  desirable  cis:trans configuration are obtained herein.
Patent CA-2024637-A1 (CA)
Title: Methods and apparatus for contamination control in plasma processing
Inventor: BENNETT REID S
IPC: H01L21/302
Filed: 1990-09-05
Abstract: ABSTRACT OF THE DISCLOSURE            METHODS AND APPARATUS FOR CONTAMINATION CONTROL           IN PLASMA PROCESSING     Contamination levels in plasma processes are reduced during plasma processing, by prevention of formation of particles,  by preventing entry of particles externally introduced or by removing particles spontaneously formed from chemical and/or mechanical sources.  Some techniques for  prevention  of  formation  of  particles  include interruption  of  the  plasma by pulsing  the  source  of plasma energy periodically, or application of energy to provide   mechanical   agitation   such   as   mechanical shockwaves,    acoustic   stress,   ultrasonic   stress, vibrational stress, thermal stress, and pressure stress. Following a period of applied stress,  a tool is pumped out   (if  a  plasma  is  used,   the  glow  is  first discontinued), vented, opened and flaked or particulate material is cleaned from the lower electrode and other surfaces.   A burst of filtered air or nitrogen,  or a vacuum cleaner is used for removal of deposition debris while the vented tool is open.  Following this procedure, the   tool   is   then   be   used   for   product   runs. Alternatively,   improvement  of  semiconductor  process yields can be achieved by addition of reagents to getter chemical precursors of contamination particulates and by filtration of particulates  from feedgas before plasma processing.  The efficiency and endpoint for the applied stress are determined, by laser light scattering, using a pulsed or continuous laser source, e.g. a HeNe laser.
Patent CA-2026176-A1 (CA)
Title: Palier de compas pour ouvrant oscillo-battant de portes, fenetres ou analogues
Inventor: PREVOT GERARD
IPC: E05D15/52
Filed: 1990-09-25
Abstract: Abrégé descriptif Palier de compas pour ouvrant oscillo-battant de Portes, fenêtres ou analogues Un palier de compas pour ouvrant oscillo-battant de portes, fenêtres ouanalogues (4) comporte un support (5) rapporté sur le dormant (3) et une lame (17) en forme d'équerre présentant une aile (19), sur laquelle étant montée pivotante une platine (33) supportant un bras de compas (18) par l'intermédiaire d'un pivot (24). De manière à faciliter la réversibilité de ce palier de compas sans démontage de pièce, d'une part, l'alle (19) de la lame (17) est munie sur son chant supérieur (36) et inférieur (43) d'une fiche (41, 42) s'insérant dans une ouverture (44) pratiquée dans le pivot (24) et, d'autre part, la platine (33) est montée sur cette aile (19) au moyen d'un excentrique (46) dont la rotation engendre un déplacement vertical de cette platine (33) provoquant le dégagement d'une fiche (41, 42) de l'ouverture (44) présente dans le pivot (24).
Patent CA-2030011-A1 (CA)
Title: Composite building panel
Inventor: MILL PETER A D
IPC: E04B2/92
Filed: 1990-11-14
Abstract: ABSTRACT      A composite building panel for application primarily to the exterior of buildings, comprises a core layer of lightweight insulating foam proving a thermal insulation of at least about R8 per inch.  The insulating foam is encapsulated in a layer of fluid impermeable material to inhibit the passage of vapor and gasses therethrough.  An outer sheet consists of at least one finishing panel adhering to an outer surface of said core layer.  A rigid inner structural sheet, thermally compatible with the expansion characteristics of said outer sheet, adheres to an inner surface of the core layer to provide structural integrity to the panel.  Anchoring fittings are attached to the inner sheet to permit attachment of said panel to a building structure.  The panel is of lightweight construction and is useful especially in environmentally efficient buildings.
Patent CA-2030484-A1 (CA)
Title: Semiconductor pressure sensor and method for manufacturing the same
Inventor: NAKAMURA TETSURO
IPC: H01L29/84
Filed: 1990-11-21
Abstract: The present invention relates to a pressure sensor having excellent temperature characteristics and provided with a diaphragm with the desired constant thickness, and it also relates to a method for manufacturing such pressure sensor.      The semiconductor pressure sensor of this invention comprises a diaphragm formed by aniso-tropic etching of silicon single crystal, chara-cterized in that an etch-stop layer is provded at the site where etching is to be stopped, and that an etch-stop layer having insulating property is provided as the insulating layer of the pressure-sensitive portion.      Also, the method for manufacturing the pressure sensor of this invention is charactrized in that it comprises: a process for forming SiO2 layer by heating and oxidizing the bonded surface of silicone single crystal wafers; a process for bonding said SiO2 layers of two silicon single crystal wafers, on which SiO2 layer is formed; a process for polishing upper and lower surfaces of the bonded silicon single crystal wafers to a constant thickness; a process for sequentially and epitaxially growing Si, single crystal Al2O3 and Si sequentially on upper surface of silicon single crystal wafers having a constant thickness; and a process for removing the lower surface of silicon single crystal wafers by etching except the supporting portion.      Also, the method for manufacturing the other pressure sensor of the invention is characterized in that single crystal Al2O3 is epitaxially grown on silicon single crystal wafer, Si is then epi-taxially grown on its upper surface, and single crystal Al2O3 and Si are further sequentially and epitaxially grown on its upper surface.
Patent CA-2031314-A1 (CA)
Title: Balanced Clamp Structure
Inventor: OETIKER HANS
IPC: F16L33/00
Filed: 1990-12-05
Abstract: A clamp structure of the open type with mutually overlapping inner and outer band portions, in which two ears are provided disposed diametrically opposite one another and at least the outer band portion is provided with an additional opening on the side of its ear opposite the free end of the outer band portion to balance the clamp structure when installed on an object to be fastened thereby.  For larger clamp sizes, the inner band portion may also be provided with an opening located on the side of the outwardly extending hooks of the mechanical interconnection opposite the free end of the inner band portion.   The inner band portion may additionally be provided with an outwardly extending hook adapted to engage in the opening provided in the outer band portion so as to keep the two band portions axially aligned.  Elastic stretchability may be imparted to the clamping band by one or more sections having non-rectilinear lateral band portions on both sides of the center longitudinal clamping band plane, whereby one or more of such sections replace one or more of the openings.
Patent CA-2031395-A1 (CA)
Title: Method for forming a photoresist with a cover coat
Inventor: SAKURAI KIYOMI
IPC: H05K3/00
Filed: 1990-12-03
Abstract: Abstract of the Disclosure An improved method for forming a photoresist with a cover coat comprising forming a photosensitive resinous layer on a conductive board by an anionic electrodeposition coating means, washing with water, dipping the coated board into a water dispersion comprising 100 to 30% by weight (in solid) of an acrylic polymer of perfluoro alkyl acrylate or methacrylate and other .alpha.,.beta. -ethylenically unsaturated monomer and 0 to 70% by weight (in solid) of a water soluble high molecular weight compound, pH of which is controlled in 7.0 to 9.0, and finally drying.  In this method, only one drying operation is required at the final stage.
Patent CA-2031509-A1 (CA)
IPC: E02F9/20
Filed: 1990-04-26
Abstract: ABSTRACT       Title: "Control Lever Assembly"       A control lever assembly e.g. for controlling hydraulic valves in an excavating and/or loading vehicle (10) includes first and second control levers (34,35) the first control lever (34) being mounted for movement about first and second transverse axes, (45, 47) movement of the first lever (34) about the first axis (45) operating a first function, and movement of the first lever (34) about the second axis (47) operating a second function, and a second control lever (35) mounted for movement about a third axis (56) generally coincident with or parallel to the first axis (45) movement of the second lever (35) about the third axis (56) operating a third function, the first lever (34) being generally rigid with a mounting member (37) and the second lever (35) being movably mounted on the mounting member (37) whereby upon movement of the first lever (34) about the second axis (47) the second lever (35) is carried by the mounting member (37) so that the third axis (56) remains generally coincident with or parallel to the first axis.
Patent CA-2031725-A1 (CA)
Title: Bottom discharge stoker
Inventor: SKEATH MARK D
IPC: B65D88/64
Filed: 1990-12-07
Abstract: - THE BOTTOM DISCHARGE STOKER -ABSTRACT    For the controlled discharge of bulk materials, from a storage bin or hopper, a variety of feed systems are used. For the most part the design characteristics of these systems restrict the natural flowability of the stored material from the full area of the storage outlet. This flow restriction and the high shear forces between the feed system and the stored material can cause material damage and compaction. This compaction can result in stagnant areas of material or even a no-flow situation of the entire storage. Most importantly, under these conditions it is difficult to maintain a reliable flow of material at a desired rate. In this invention a chute with an opening of a selected side travels back and forth under the full storage outlet allowing material to flow into a stationary channel. On each side of the chute opening and above the channel, smooth-faced plates traverse with the opening while at the same time support the material in the remaining area of the storage outlet. The material is then pushed through an opening at one end of the channel by a repetitive charge and discharge action that is synchronized with the traversing of the chute opening. The result is a reliable flow of material from the full storage opening.
Patent CA-2038235-A1 (CA)
Title: Interactive monitor control system
Inventor: STOORZA KENNETH W
IPC: G09G5/00
Filed: 1991-03-14
Abstract: ABSTRACT    A control interface system governing the operation of an autosync multi-format display monitor.  Incoming video signals are measured to discern the attendant timing format.  Calibration of the monitor responsive to the video signal is made on selected display parameters defining the structural characteristics of the displayed image.  The calibration system is both simplified and highly versatile, permitting quick and accurate calibration of disparate incoming signals.
Patent CA-2040724-A1 (CA)
Title: Voice password controlled computer security system
Inventor: FLANAGAN JAMES L
IPC: G06F12/14
Filed: 1991-04-17
Abstract: VOICE PASSWORD-CONTROLLED COMPUTER SECURITY SYSTEM Abstract A voice password-controlled computer security system and method of operation for querying a user to provide voice password nformation and, upon a match thereof with stored voice information for the user, initiating a data connection to a preassigned terminal associated with the identified user.
Patent CA-2042390-A1 (CA)
Inventor: FITE FRANKLIN D JR
IPC: H04L69/40
Filed: 1990-11-02
Abstract: Abstract An arrangement is disclosed for recovering from faults in transmission equipment or facilities forming so-called virtual circuits for transmitting packets in a network. Faults are detected in transmission paths associated with a network node and a fault indication is generated for any virtual circuits passing through the node that are affected by the fault. The fault indications are then transmitted on corresponding ones of the affected virtual circuits or on other designated virtual circuits. If any of the affected virtual circuits are terminated in the node, no fault indications are generated for them and they are switched to alternate virtual circuits. Otherwise, the fault indications are transmitted on corresponding virtual circuits or on other designated virtual circuits over facilities connected to the node to other unknown nodes. A node receiving a fault indication message determines whether the corresponding virtual circuit is terminated at the node, has one or more alternate virtual links in the node, or passes through it to some other unknown node. If an affected virtual circuit is terminated in the node, or has one or more alternate virtual links in the node, it is switched to an alternate virtual link. If the affected virtual circuit is not terminated in the node, and has no alternate virtual link present, the corresponding fault indication message is passed, i.e., switched, through it on that virtual circuit over a facility to some other unknown node.
Patent CA-2043224-A1 (CA)
Title: Semi-permeable membrane producing apparatus
Inventor: TREMBLAY Y ANDRE
IPC: B01D69/10
Filed: 1991-05-24
Abstract: TITLE          A SEMI-PERMEABLE MEMBRANE PRODUCING APPARATUS                            INVENTORS                       André Y. Tremblay Thomas A. Tweddle Mauro M. Dal-Cin Oleh Kutowy ABSTRACT OF THE DISCLOSURE    A semi-permeable membrane producing apparatus comprising a tensioned membrane backing sheet supplying device, a casting device for casting a casting solution coating on the backing sheet, a backing sheet cross cutting device, a coated backing sheet support, a solvent evaporating casing over the support, a gelation bath, and a variable speed take-up for drawing the backing sheet at the casting speed and, once the coated backing sheet is severed from the supply device, drawing the coated backing sheet into the gelation bath at a rapid entry rate of at least about 15 cm/second.  The solvent evaporating casing contains a heater and fan for circulating heated or unheated gas over the coating for polymer migration enrichment of the coating towards its exposed surface by solvent evaporation.  The same apparatus may be used with a different gelation bath for gelation to occur at the casting rate.
Patent CA-2046410-A1 (CA)
Title: Composition and method for discouraging spiders, insects or the like
Inventor: PLUMMER DONALD E
IPC: A01N65/08
Filed: 1991-07-05
Abstract: ABSTRACT OF THE INVENTION    A composition and method for spraying an area to inhibit web growth and discourage spiders,  other insect or the like from returning to the sprayed area.  The solution includes liquid soap that is blended with oil of anise and coriander oil.  Capsicum is then added and completely blended in the soap mixture.  The mixture is blended with an acetic acid solution to form the solution.
Patent CA-2048972-A1 (CA)
Title: Valve position sensor diagnostic
Inventor: WITKOWSKI MICHAEL R
IPC: F02D41/22
Filed: 1991-08-12
Abstract: VALVE POSITION SENSOR DIAGNOSTIC Abstract of the Disclosure A throttle valve diagnostic apparatus monitors the integrity of a throttle valve position sensor in an internal combustion engine using an engine parameter indirectly related to the valve position   If the absolute pressure of the air in the intake manifold associated with the throttle valve is less than a predetermined pressure for a predetermined amount of time while the position sensor indicates a valve position greater than a predetermined position, the valve position sensor is assumed to be faulty.
Patent CA-2052893-A1 (CA)
Inventor: BRUNET PIERRE
IPC: B29C43/00
Filed: 1991-10-07
Abstract: The present invention relates to the manufacture of abrasion-proof plates. The abrasion-proof surface of the plate is composed of external face 5 of a layer of composite material based on spherical grains of melted tungsten carbide bonded in a soldering alloy. Grinding surface 5 has a smooth and even mould finish. The abrasion-proof layer contains a compact, regular and essentially uniform random distribution of tungsten carbide grains. Surface 5 is made by moulding: the tungsten carbide grains are inserted between the mould walls and core 2 of the part, and the soldering alloy is made to infiltrate between the powder grains, core 2 and the mould by increasing the temperature. The invention allows a significant increase in the abrasion resistance of grinding plates.
Patent CA-2053319-A1 (CA)
Inventor: HOLMSTROM TORBJORN
IPC: F04B13/00
Filed: 1990-04-17
Abstract: A pump and metering apparatus, comprising a frame supporting a liquid container with a movable plunger therein for discharging respectively drawing in liquid, the plunger being connected to a runner means (17), which by a nut portion (16) thereof threadedly engages a screw (6) rotatably mounted in the frame and coupled to a driving motor. According to the invention the nut portion (16) of the runner means (17) is movable in relation to the remaining structure of the runner means (17) in the radial direction of the screw (6), such that the nut portion (16) will be self-centering on the centre axis of the screw.
Patent CA-2053966-A1 (CA)
Inventor: STROLLE CHRISTOPHER H
IPC: G11B20/02
Filed: 1991-10-22
Abstract: A system is disclosed for reproducing a luminance signal from a medium containing a previously recorded reduced level luminance signal.  The system includes a circuit for recovering the reduced level luminance signal from the medium.  A circuit cores a high frequency portion of the reduced level luminance signal.  The level of the cored high frequency portion is then boosted by a predetermined amount to produce the luminance signal.  In addition, a system for recording a luminance signal on and playing back said luminance signal from a recording medium is disclosed.  The system includes an adaptive deemphasis circuit for adaptively reducing the level of a high frequency portion of the luminance signal.  A record circuit records the reduced level luminance signal on the medium.  A playback circuit reproduces the reduced level luminance signal from the medium.  A reemphasis circuit non-adaptively boosts the level of the high frequency portion of the reduced level luminance signal to produce the luminance signal.
Patent CA-2054233-A1 (CA)
Title: Surgical infusion control system
Inventor: TYLER HUGH JEAN
IPC: A61M5/44
Filed: 1991-10-25
Abstract: SURGICAL INFUSION CONTROL SYSTEM  Abstract An infusion system which is a single integrated unit and performs all fluid handling functions associated with controlled pressure is disclosed.  The system comprises a multi-channeled bag, capable of carrying infusion fluid to a plurality of surgical tools, which rests between an upper plate and a lower plate is disclosed.  The bag is sealed on one side by a header which contains parts for receiving infusion or tool channels, and has attachment capabilities for receiving infusion fluids and gasses or tools.  The upper plate includes on/off valves in communication with the bag to control fluid flow path.  This upper plate also include a proportional valves, electronically corrected to a pressure sensors, forming a feedback system, in communication with the bag and capable of adjusting the infusion fluid pressure upon sensing external pressure changes.  The lower plate provides support and heat exchange to the bag, as it can be heated or cooled so as to heat or cool the infusion fluid.  All of these functions of the system are preformed non-invasively whereby the infusion fluid remains sterile.
Patent CA-2055062-A1 (CA)
Title: Prodrugs for beta-lactamase and uses thereof
Inventor: KADOW JOHN
IPC: C07D519/06
Filed: 1991-11-06
Abstract: ABSTRACT OF THE DISCLOSURE      The instant invention relates to a novel method for the delivery of antitumor drugs to tumor cells by the administration of a tumor-selective antibody- .beta.-lactamase conjugate that binds to tumor cells, and the additional administration of a cephalosporin prodrug that is converted at the tumor site, in the presence of the antibody-.beta.-lactamase, to an active cytotoxic drug.  According to the preferred embodiment of this invention, a cephalosporin mustard has been constructed which when cleaved by .beta.-lactamase yields a cytotoxic nitrogen mustard.  The methods, antibody-enzyme conjugate, prodrugs, pharmaceutical compositions, and combinations of this invention provide for enhanced selective killing of tumor cells and are thus useful in the treatment of cancers and other tumors.
Patent CA-2055142-A1 (CA)
IPC: G02F1/1333
Filed: 1991-11-07
Abstract: A liquid crystal display apparatus which in-cludes display devices each having screens, an optical fiber bundle connected to the respective screens so as to transmit an image therethrough, wherein the optical fiber bundle includes optical fibers arranged side by side, fastened to each other, and  bent so as to have a straight portion and branch portions, the straight portion being perpendicularly connected to an output end face, and the branch portions being connected to an input end face, and spacers interposed between adjacent optical fibers in a portion of the bundle at least toward the output end face of the display apparatus.
Patent CA-2055694-A1 (CA)
Title: Railroad car with retractable cover
Inventor: WILLETTS DAVID P
IPC: B61D39/00
Filed: 1991-11-15
Abstract: ABSTRACT OF THE DISCLOSURE A railroad car is provided with a retractable cover for transporting material such as speciality lumber requiring dry conditions or kraft pulp requiring dry ventilated conditions.  The retractable covering provides complete protection for the load from all weather conditions and provides access to the load from both sides of the car with overhead clearance for forklift unloading/loading and, in the case of kraft pulp, it allows the product to ventilate and thus avoid interior condensation on the product. A furling system is located lengthwise of the car at the top thereof for storing the cover in an opened position and for paying out the cover when the car is being closed.  Guide tracks at both ends of the car are used to lead the edges of the cover to its open and closed positions and the cover is opened and closed by a winch mechanism.